OF CONCHOLOGY 67 



until more material is obtained. Davidson (Italian Tert. Brach. 

 PI. xxi, f. 16,) figures T. monstruosa, Scacchi,- under the name 

 of Platidia Davidsoni, as he has subsequently informed me. 



MAGASELLA, p. 134. 



Mr. Davidson thinks that the shell he figured and described 

 as the type of the genus Waltonia was a mutilated, immature 

 Magasella. As this is not certain, and the diagnosis of Waltonia 

 would in no wise apply to Magasella, I have preferred to retain 

 the latter name for the present, as there is no doubt as to what 

 that stands for. But, if Mr. Davidson be correct, the name 

 Waltonia, with a new diagnosis, should justly take the place of 

 Magasella, on the sole ground of priority. The figure of Wal- 

 tonia might represent a young Terebratella or other brachiopod, 

 as in their young stages all the shells are very similar. 



Page 137. "Magasella" Spitzbergensis, Dav., is a Terebratella. 

 Add locality, " 35 miles N. N. W. of Unst, 90—100 fms," 

 Jeffreys. 



Add Magasella suffusa, Rve., as previously noted. 



Add Magasella Adamsi, Davidson MSS., Japan, A. Adams. 



Add Magasella inconspicua, Sby. Thes. Conch, i, p. 359, pi. 

 lxxi, f. 102—4, 1846. New Zealand, off Sinclair Head and in 

 Lyall Bay, N. Z. Col. Mus. 



This species resembles Terebratella rubicunda, Sol., in form 

 and coloration, and was referred to that species, wrongly, by 

 Reeve. It has the open foramen and septum of Magasella and 

 should be removed from the synonymy of rubicunda and rein- 

 stated as a distinct species. I would add that some fine speci- 

 mens of T. cruenta, Dill., (p. 117) having been received from 

 the New Zealand Colonial Museum, show that it is perfectly 

 distinct from T. rubicunda. 



Add Magasella Crouldii, n. s. Plate 11, fig. 11. 



Shell small, strongly ribbed with 18 — 20 radiating, rounded 

 costae, very transverse, cistella-shaped. Foramen large, incom- 

 plete, with a wide sharply defined flat area, and small, widely 

 separated deltidia. Hinge teeth very strong, septum long, 

 slender, hinge line of haemal valve almost straight; haemal valve 

 nearly flat, neural valve rather deep, with a well defined median 

 sulcus ; interior white or reddish, outside yellowish, with red 

 upon the ribs. Striae of growth rather strong. Shell very thick 

 and solid. Soft parts without a median brachial lobe. Yellow- 

 ish. Apophyses as usual in Magasella ; very slender. Lon. 

 •16, Lat. *22, Diameter *07 inches. 



